And here is why.
For example if you strafe from left to right a true analog stick will output from 0% to 100% left, then from 100% left to 0%, then again from 0% to 100% right, then from 100% right to 0% again (rest position).
That is not what happens when using a wooting: when you strafe you press A and D, the analog output is like (A) from 0% to 100% left, then (B) suddenly jumps back to 0%, then goes up to 100%right.
It misses the part where the x coordinate comes back gradually from 100% left to 0 (it literally skips it).
Be careful using it in R6 or Valorant!